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comparison src/share/vm/code/vtableStubs.cpp @ 17677:51e1bb81df86 jdk8u20-b03

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Merge
author amurillo
date Tue, 25 Feb 2014 13:02:52 -0800
parents 22b3b2f888bc
children 4ca6dc0799b6 78bbf4d43a14
comparison
equal deleted inserted replaced
17660:9a93fe1babdc 17677:51e1bb81df86
53 const int real_size = round_to(code_size + sizeof(VtableStub), wordSize); 53 const int real_size = round_to(code_size + sizeof(VtableStub), wordSize);
54 // malloc them in chunks to minimize header overhead 54 // malloc them in chunks to minimize header overhead
55 const int chunk_factor = 32; 55 const int chunk_factor = 32;
56 if (_chunk == NULL || _chunk + real_size > _chunk_end) { 56 if (_chunk == NULL || _chunk + real_size > _chunk_end) {
57 const int bytes = chunk_factor * real_size + pd_code_alignment(); 57 const int bytes = chunk_factor * real_size + pd_code_alignment();
58
59 // There is a dependency on the name of the blob in src/share/vm/prims/jvmtiCodeBlobEvents.cpp
60 // If changing the name, update the other file accordingly.
58 BufferBlob* blob = BufferBlob::create("vtable chunks", bytes); 61 BufferBlob* blob = BufferBlob::create("vtable chunks", bytes);
59 if (blob == NULL) { 62 if (blob == NULL) {
60 return NULL; 63 return NULL;
61 } 64 }
62 _chunk = blob->content_begin(); 65 _chunk = blob->content_begin();
63 _chunk_end = _chunk + bytes; 66 _chunk_end = _chunk + bytes;
64 Forte::register_stub("vtable stub", _chunk, _chunk_end); 67 Forte::register_stub("vtable stub", _chunk, _chunk_end);
65 // Notify JVMTI about this stub. The event will be recorded by the enclosing
66 // JvmtiDynamicCodeEventCollector and posted when this thread has released
67 // all locks.
68 if (JvmtiExport::should_post_dynamic_code_generated()) {
69 JvmtiExport::post_dynamic_code_generated_while_holding_locks("vtable stub", _chunk, _chunk_end);
70 }
71 align_chunk(); 68 align_chunk();
72 } 69 }
73 assert(_chunk + real_size <= _chunk_end, "bad allocation"); 70 assert(_chunk + real_size <= _chunk_end, "bad allocation");
74 void* res = _chunk; 71 void* res = _chunk;
75 _chunk += real_size; 72 _chunk += real_size;
128 if (PrintAdapterHandlers) { 125 if (PrintAdapterHandlers) {
129 tty->print_cr("Decoding VtableStub %s[%d]@%d", 126 tty->print_cr("Decoding VtableStub %s[%d]@%d",
130 is_vtable_stub? "vtbl": "itbl", vtable_index, VtableStub::receiver_location()); 127 is_vtable_stub? "vtbl": "itbl", vtable_index, VtableStub::receiver_location());
131 Disassembler::decode(s->code_begin(), s->code_end()); 128 Disassembler::decode(s->code_begin(), s->code_end());
132 } 129 }
130 // Notify JVMTI about this stub. The event will be recorded by the enclosing
131 // JvmtiDynamicCodeEventCollector and posted when this thread has released
132 // all locks.
133 if (JvmtiExport::should_post_dynamic_code_generated()) {
134 JvmtiExport::post_dynamic_code_generated_while_holding_locks(is_vtable_stub? "vtable stub": "itable stub",
135 s->code_begin(), s->code_end());
136 }
133 } 137 }
134 return s->entry_point(); 138 return s->entry_point();
135 } 139 }
136 140
137 141
191 return NULL; 195 return NULL;
192 } 196 }
193 197
194 void vtableStubs_init() { 198 void vtableStubs_init() {
195 VtableStubs::initialize(); 199 VtableStubs::initialize();
200 }
201
202 void VtableStubs::vtable_stub_do(void f(VtableStub*)) {
203 for (int i = 0; i < N; i++) {
204 for (VtableStub* s = _table[i]; s != NULL; s = s->next()) {
205 f(s);
206 }
207 }
196 } 208 }
197 209
198 210
199 //----------------------------------------------------------------------------------------------------- 211 //-----------------------------------------------------------------------------------------------------
200 // Non-product code 212 // Non-product code